Use a serrated knife to carefully cut 18 of the cookies into quarters. Save remaining cookies for another use. For each bat, place 2 cookie quarters 1 cm apart on waxed paper. Repeat with remaining quarters. Melt candy melts. Drop about half teaspoon of melted candy at center of each bat, connecting cookies. Use a toothpick to smooth melted candy into a uniform circle. Cool completely before removing from waxed paper.